# File lib/facter/operatingsystem/sunos.rb, line 26
      def get_operatingsystemrelease
        if release = Facter::Util::FileRead.read('/etc/release')
          line = release.split("\n").first

          # Solaris 10: Solaris 10 10/09 s10x_u8wos_08a X86
          # Solaris 11 (old naming scheme): Oracle Solaris 11 11/11 X86
          # Solaris 11 (new naming scheme): Oracle Solaris 11.1 SPARC
          if match = /\s+s(\d+)[sx]?(_u\d+)?.*(?:SPARC|X86)/.match(line)
            match.captures.join('')
          elsif match = /Solaris ([0-9\.]+(?:\s*[0-9\.\/]+))\s*(?:SPARC|X86)/.match(line)
            match.captures[0]
          else
            Facter[:kernelrelease].value
          end
        else
          Facter[:kernelrelease].value
        end
      end